Force-feed oiler



April 9, 1929, w. w. CLARKE FORCE FEED OIL ER Filed May '7, 1928 Patented Apr. 9, 19539.

UNITED STATES PATENT OFFICE.

WILLIAM wnsnn'r onanrzn, or WATERBURY, connnocrrou'r, ASSIGNOR o CHASE COMPANIES, inc, or warnanun CONNECTICUT, A CORPORATION.

FORGE-FEED OILER.

Application filed May '7,

My invention relates to an improvement convenie cc and ease of operation, to adaptation to function equally well in any position oi inclination and even upsule down,

and to permitting its valves to be readily accessible for the removal of sediment, chaiii, or other obstructions.

With these ends in view, my invention consists in a force-feed oiler characterised by its provision with an assembly-spr ng carrying at its lower end a valve--un1t wh1ch is installed in position by the lnsertion of the said spring into the valve-tube oi the oiler and removed therefrom with it.

My invention further consists in a force teed oiler adapted to have the upper and lower valves (if its valve-tube readily removed for being cleaned and adjusted upon the removal of the spout.

My invention further consists in a force- :teed oiler having certain other details of construction and. combinations of parts as will be hereinafter described andparticularly recited in the claims.

in the accompanying drawings:

Fig. 1 is a view in side elevation of my improved torceteed oiler;

Fig. 2 is a view showing the oil-can and tiller-rap in vertical central section, the ringer-tube andv valve-tube in elevation, anl the plunger-tube in position to be screwed into the cast-metal tul e-mounting c, which serves to mount tie inner ends oi the two tubes and to connect the plungertuhe with the valve-tube for the flow of the oil between them;

Fig. 3 is an enlargedscale reverse plan view of the oiler with the bottom of the oilcan removed;

is a view of the oiler in vertical central section, with the outer end of the snout broken away;

Fig. 5 is view in transverse section on the line 5-5 of Fig. l; and

Fig. 6 is a detached perspective view of the cast-metal tube-mounting base provided for mounting the inner ends of the two tubes.

in carrying out my invention, as herein shown, I employ a cast-metal tube-mounting 1928. Serial No. 275,602.

base 10 having in its upper face a shallow threaded socket 11 receiving and mounting the threaded inner end of the plunger-tube l2 and a deeper and smaller threaded socket 13 receiving and mounting the inner end of the valve-tube 14-, the said sockets 11 and 13 being located in line with each other but inclined with respect to each other to provide for the inclination of the plungerand valve-tubes within the oil-can 15, which may be of any suitable construction and shown as provided with a filler-cap 16 and handle 17.

The said tube-mounting base 10 is also provided in its lower face with an intakeport 18 located in line with the axis or the valve-tube 1a and with an inclined interior oil-passage 19, which connects its sockets 11 and 13 before described and hence the tubes 12 and ltfor the flow of oil between the same.

The plunger-tube 12 houses a helical spring 20, the lower end of which bears against the bottom of the socket 11 aforesaid, while its upper end bears against a piston of any approved construction, designated by the general numeral 21, this piston being carried by a piston-rod 22 having a thumb-piece 23 at its outer end and having bearing in a removable threaded cap 24: screwed upon the projecting upper end of the plunger-tube 12, which is soldered into an opening in the shoulder of the can 15.

The said valve-tube 1 1 receives a helical spring 25, the lower end of which has attached to it a cup-lilre sheet-metal valvchousin 26 slightly smaller in external diameter than the internal diameter of the said tube by which it is guided. The upper end of the said cup-like housing 26 is contracted to receive a small helical valve-spring 27, which is fastened to it, of much less tension than the spring 525. At its lower end the spring mounts a shallow cup-like valve normallyresting upon a valve-seat 29 surrounding the intahe-port 18 formed, as already described, in the mounting-base 10.

The upper end of the spring impinges against the reduced. inner end of a re movable valve-housing 30, the lower end whereof forms a valve-seat 31 for a ballvalve 32 normally held in place upon it by a cone-shaped helical valve-spring 33, the outer end of which is retained in place within the said housing by a flange 34 turned inwardly from the upper end thereof. The upper end of the said housing is also set outwardly to form a bead which rests upon the projecting upper end of the valvetube 14, which is soldered in place at the point where it passes through an opening into the shoulder of the oilecan 15. The spring 25 serves to hold the Valve-housing 26 in place and provides means whereby the same and the valve-spring 27 and valve 28 may be installed in the lower end of the valve-tube and removed therefrom at pleasure as a unit. The spring 25 does not directly co-act with either of the valves 28 or 32 and for convenience will be characterized as an assembly-spring.

The projecting upper end of the valves tube 14 threaded for the removable application of the spout36, the lower end of which isflanged as at37, whereby it is mounted so as to tumor swivel in a collar 38 internally threaded for being removably applied to the threaded upper end of-the said valve-tube 14. A gasket- 39 located within the collar 38 is interposed between the flange 37 of the spout 36 and the retaining-flange 34 of the valve-housing 30.

As thus Constructed, upon the removal of the spout, the valve-housing 30, its ball-valve 32 and valve-spring 33 may be removed as a unit for being cleaned. After such removal, the outer end of the assembly spring may be engaged, and such spring, together with the valve-housing 26, its enclosed spring 27 and valve 28, may also be removed as a unit forcleaning and replacement. Also, by removing the'cap 24, the piston 21., and its spring 20, may readily be removed for cleaning and replacement,

: It will thus be seen that under my im proved construction, theworking parts of my improved force-feed oiler are readily accessible for cleaning Without disturbing the plungerand va1vetubes, the inner ends 'ofw'vhich are permanently mounted in the one-piece east-metal tube-mounting base 10 already described.

In the operation of my lingroved oiler, the

piston. 21 is first pressed inward in the plunger-tube 12 against the tension of the spring 20. On the return movement of the piston under the recoil of the spring, a portion of the oil in the can is drawn through the inletport l8 and passage 19 of the tube mounting base 10 into the lower end of the plunger tube, in which it is trapped by the seating ofthe valve 28 upon the valve-seat 29 by'the light valve-spring 27. Now, when the piston 21 is again forced inward, the

trapped oil the lower end of the tube 12 is forced through the passage 19 and up into the valve-tube'14, the valve 28 being new u ,sprlng removably positioned in the said valve-tube, a housing fastened to the lower end of the said spring, a valve-spring located within ano secured to the said housing, and a valve carried by the said valvespring, the said assembly-spring, housing, valvdspring, and valve being rcmowlble as a unit through the upper end of the said valve-tube after the removal of the said spout therefrom; and means for forcing oil from the can into the lower end of the said 'valve-tube.

2. In a force-feed oiler, the combination with a can, a valve-tube therein, two removable valve-units located in the said tube, each comprising a valve-housing, a valvespring and a valve, and an assembly'spring removably positioned in the said valve-tube, interposed between the said valve-housings and having the inner valve-housing con nected with and carried by it, whereby the same may be removed from the valve-tube by engaging with the upper end of the said assembly-spring.

'3. In a force-feed oiler, the combination with an oil-can, of a valve-tube and a plunger-tube permanently located therein in positions inclined with respect to each other, a one-piece mounting-base located within the can, having the lower ends of the said tubes mounted in it, and being 1)IO"l(l0(l with an oil-intake port opening into the can and with an interior oil-passage connecting the two tubes, a spring-actuated plunger for the plunger-tube, two removable valve-units installed in the valve-tube, near the ends thereof, and an. assembly-s )ring removably positioned between the said valve-units and carrying the lower unit which it normally holds in place and which it provides for the removal and installation of.

4. In a force-feed oiler, the combination with a can, of plungerand valve-tubes therefor, a spout forthe valve-tube, two spring-operated valve-units installed in the said valve-tube and removable therefrom on the removal of the spout thereof, and means in the said plungcr-tube for forcing oil into the lower end of the said valve-tube.

In testimony whereof, I have signed this specification.

WILLIAM WESLEY CLARKE. 

